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Herbaceous Perennial

Dianthus Ideal Select Series, Mixed

sweet william Ideal Select Series, Mixed

A mix of compact evergreen perennials, usually grown as annuals, to around 25cm high. Plants form bushy mounds of narrow dark green leaves, topped with fragrant flowers in shades of white, pink and red from late spring to autumn

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Ultimate height

0.1–0.5 metres

Time to ultimate height

2–5 years

Ultimate spread

0.1–0.5 metres

Chalk

Loam

Sand

Moisture

Moist but well–drained, Well–drained

pH

Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun

Aspect

South–facing or West–facing

Exposure

Sheltered

Hardiness
Hardiness ratings
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H1a: under glass all year (>15C)
H1b: can be grown outside in the summer (10 - 15)
H1c: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20)

Botanical details

Family: Caryophyllaceae
Native to GB / Ireland: No
Foliage: Evergreen
Habit: Bushy
Potentially harmful: Humans/Pets: Skin allergen, wear gloves and other protective equipment when handling. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus: Dianthus can be annuals, evergreen perennials or subshrubs with narrow, often greyish leaves and showy flowers that are frequently fragrant
Name status: Unresolved

How to grow

Cultivation

Grow in a well-drained, neutral to alkaline soil in full sun. Prefers a soil enriched with well-rotted manure or garden compost and an application of a balanced fertiliser in spring

Propagation

Propagate by softwood cuttings from non-flowering shoots in summer

Suggested planting locations and garden types

Cottage and informal garden
Patio and container plants
Bedding
Flower borders and beds

Pruning

Deadhead regularly to promote flowering

Pests

May be susceptible to slugs and aphids

Diseases

May be susceptible to powdery mildews, a rust, a virus and fusarium wilt

Get involved

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